mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-12-13 05:45:02 +00:00
60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
package cache
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestRelayCache_Add(t *testing.T) {
|
|
const capacity = 3
|
|
payloads := getDifferentItems(t, capacity+1)
|
|
c := NewFIFOCache(capacity)
|
|
require.Equal(t, 0, c.queue.Len())
|
|
require.Equal(t, 0, len(c.elems))
|
|
|
|
for i := 1; i < capacity; i++ {
|
|
c.Add(&payloads[i])
|
|
require.True(t, c.Has(payloads[i].Hash()))
|
|
require.Equal(t, i, c.queue.Len())
|
|
require.Equal(t, i, len(c.elems))
|
|
}
|
|
|
|
// add already existing payload
|
|
c.Add(&payloads[1])
|
|
require.Equal(t, capacity-1, c.queue.Len())
|
|
require.Equal(t, capacity-1, len(c.elems))
|
|
|
|
c.Add(&payloads[0])
|
|
require.Equal(t, capacity, c.queue.Len())
|
|
require.Equal(t, capacity, len(c.elems))
|
|
|
|
// capacity does not exceed maximum
|
|
c.Add(&payloads[capacity])
|
|
require.Equal(t, capacity, c.queue.Len())
|
|
require.Equal(t, capacity, len(c.elems))
|
|
|
|
// recent payloads are still present in cache
|
|
require.Equal(t, &payloads[0], c.Get(payloads[0].Hash()))
|
|
for i := 2; i <= capacity; i++ {
|
|
require.Equal(t, &payloads[i], c.Get(payloads[i].Hash()))
|
|
}
|
|
|
|
// oldest payload was removed
|
|
require.Equal(t, nil, c.Get(payloads[1].Hash()))
|
|
}
|
|
|
|
type testHashable []byte
|
|
|
|
// Hash implements Hashable.
|
|
func (h testHashable) Hash() util.Uint256 { return hash.Sha256(h) }
|
|
|
|
func getDifferentItems(t *testing.T, n int) []testHashable {
|
|
items := make([]testHashable, n)
|
|
for i := range items {
|
|
items[i] = []byte{byte(i)}
|
|
}
|
|
return items
|
|
}
|